Drain and trap.



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'DRAIN AND TRAP. APPLICATION FILED Nov. I4. 191'6.

1121 8,482'. Pafented'Mar. 6,1917.

osoAR W. scHLAe, or CHICAGO, ILLINoIs.- l

' Y DRAIN AND'TnAnf Specification of Letters Patent. A Patented lil. 6,1917.V

Application med Novemberfii, 191e. serial No. 131,286'.

To all whom t mag/coneemf Be it known-that I, OsoAaV. SCHL'AG, a

citizen ofl'the UnitedStates, residing 'at Chicago, in the countyof- Cook and1 `State ofY Illinois', have invented new and useful Improvements 1n Drains andhTraps, offwhlch the following 4is a specification.

The present invention relates to a combineclldrain and trap for sewer pipes,"and i the object of the invention is to prOduc'ef'a device of this class wherein the vforeign substances may be trapped before being permitted to enter the sewer pipe but which at the same' time will permit of the free passage of water into the sewer and which will also prevent'the back pressure of the water within sewer flowing outward'through the drain, when such back pressure occurs.

Vith the above and other objects in view the improvement resides in the construction, combination and arrangement of parts set forth in thefollowing specification and falling within the scope of the appended claims.

In the drawing- Figure 1 is a. top plan View of a device constructed in accordance with the present invention, v I

Fig. 2 isa sectional view approximately on the 'line 2-'2 of Fig.4 1, f

Fig. 3 is a side elevation of the device, and

Fig. 4 is a. bottom plan view of the same.

In the drawing the numeral 1 designates the bowlof the improvement. The bowl may be constructed in any Ndesired'manner and of any desired material but preferably comprises a metal casting and has its upper and outer edge formed with-a anged ring 2, and the shoulder provided by the said flange is adapted to serve as a seat for the perforated'cover 3 of the device. one of its ends formed with a lug 4 that is adapted'to be received in a suitable depression inthe flange 2, a pivot member passino' transversely through the said lug and through the flange whereby to hingedly secure the cover to the bowl. The bowl upon its edge diametrically opposite that provided with the lug 4 is formed with a curved depression 5, the same providing a finger hold, whereby the said cover may be swung open upon the bowl, as for instance, when accessl is to be' obtained to the bowl.

The bowl 1 comprises a member-ofan al1- nular formation being formed with a cen- The cover has tral opening f6 andthe-said bowl to the opLi posi'te sides' 'offthe said opening 6 4is 'sub stantially'fU-'shaped in Ycross sectionl The innerwall of the bowl terminates a suitable distance below the outer 'wall thereof, or vthe wall provided with th'ey yflange`2"th"e said inner' wall,l indic'ated'for distinctidmby the numeral 7 having its outer surface iiared and thickened,"I as* at 8,' and? the said "thickened portions at preferably four right angularly dlsposed points are provided with ears 9, and plvotally secured one to each-of said ears is aplural'ity of curved arms 10. The

free ends of' these arms are'pjreferably bifurcated and receive the angular arms 11 upon a cross` .12, the bifurcated ends of the said arms being pivotally secured to the said cross, as vindicated by the numeral 13. The curved arms provide a cage for a ballvalve 14, and the flared outer. surface of the inner wall 7 of the bowl is provided with an annular depression lvwithin which is arranged a ,compressible gasket ring 16, the said ring.- serving as a seat for the ball valve 14 lwhen the said ball is subjected to` the back pressurey from the water in the sewer, andthus lit will be noted that the ball effectively seals the opening 6 in the bowl, when backpressure'in-the sewer occurs. y,

Centrallysecured to the perforated top 3,

`upon the inner face thereof, is a substanopening 6 of the bowl and thus it Vwill be p noted that all foreign matter will be deposited in the bowl, and the said deflector providing a comparatively restricted passage between the central outlet between the same and the central opening or outlet 6 of the bowl.

From the above description taken in connection with the drawing, it will be noted that any one of the arcuate arms 10 of the cage may, by the removal of one of' the pivots therefor, be swung to an open position to permit of the insertion of the ball valve 14 to within the cage. The constructionof the cage is simple and is cheap to manufacture, and the advantages of my device Will, in view of the foregoing, it is thought, be apparent Without further de tailed description.

Having thus described the invention, what I claim is.:

l. In a device for the purpose set forth, the combination With a bowl having its bottoni formed with an inwardly extending centrally flared flange provided with a continuous gasket, said bowl at the bottom thereof and in a line with the llange having spaced ears, of a eage comprising curved arms, one of which being pivotally Connected to each oi the ears, a member centrally eonneeting the arms, and the said Cage adapted to'reeeive a spherical valve to retain the same below the referred to gasket.

2. Ina device for the purpose set forth,

Copies of this patent may be obtained for the combination with a bowl having a centrally flared opening and the Wall oi: the

`opening having a continuous gasket there mentioned arms, pivot members eonneeting the curved arms to the arms of the eross,

and a s} )herieal member' caged between the said curved arms to arrange the said spherb eal member in the path of engagement with the referred to gasket,

In testimony 'whereol" l a'lix my signature.

OSCAR W. SGIlLr/XG.

five cents each, by addressing the Commissioner of Patents,

Washington, D. C. 

